CP2102N-A02-GQFN24 is a highly integrated USB-to-UART bridge controller from Silicon Labs. It provides a simple and cost-effective way to add USB connectivity to embedded systems by converting USB 2.0 Full-Speed communication into a standard UART interface. The device integrates the USB transceiver, oscillator, voltage regulator, and UART controller, minimizing external components and eliminating the need for USB firmware development. It is commonly used in microcontroller programming interfaces, industrial equipment, POS terminals, data loggers, and USB-to-serial adapters.
Key Features
USB 2.0 Full-Speed compliant (12 Mbps) interface.
USB-to-UART bridge with data rates up to 3 Mbaud.
Integrated USB transceiver; no external USB resistors required.
Integrated oscillator; no external crystal required.
On-chip 3.3 V voltage regulator.
USB Battery Charger Detection (BC 1.2) support.
Remote wakeup capability from USB suspend state.
Low operating current of approximately 9.5 mA.
Hardware and software flow control support.
Internal configurable ROM for Vendor ID, Product ID, serial number, and USB descriptors.
Royalty-free Virtual COM Port (VCP) drivers available for major operating systems.
Operating temperature range: −40°C to +85°C.
Compact 24-pin QFN (4 mm × 4 mm) package.
Typical Applications
USB-to-Serial adapters
Microcontroller programming and debugging interfaces
Industrial automation equipment
Point-of-sale (POS) terminals
Medical instruments
Data acquisition and logging systems
Embedded systems requiring USB connectivity
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